Combined cock and switch



Nov. l5, 1927. 1,649,023

c. c. FARMER COMBINED COCK AND SWITCH Filed Feb. 13. 1926 INVENTOR CLYDE C. FARMER BY Off/W@ ATTORNEY rl'ED STATES oriana e. nannten, or PITTSBURGH, PnNNsYLvANrA, assreNon 'ro 'run Wns'rrNe- House Ara BRAKE coMrANY, or wrLMnnnrNe, PnNNsYLvANIA, A CQRPORA- Tron or PENNSYLVANIA.

COMBINED COCK AND SWTGE.

Application mea Pebruary is, 192e. serial No. 88,034.

This invention relates to the control of electric train wire circuits, and the principal vided at its upper portion with a, Central object of my invention is to provide a combore into which a stem 18 loosely extends. bined electric circuit controlling switch and \\The stem 18 is provided with a transverse fluid pressure cock, in which the switch is controlled by the movement of the cock.

The purpose of the invention is to avoid the possibility of an operator coming in contact with a charged electric train line when he breaks connections between cars.

ing a plu valve 2 which is adapted to be turned eit er to open position, in which the opening 3 in the valve registers with the passageway 4, or to the closed position, as shown in the drawing, in which comoff.

Inunication through the passageway 4 is cut Applied to the under side of the angle cock is an electric switch device comprising a cylindrical casing 5. Secured within thev casing 5 is a ring 6 of insulating material and clampedbetween said ring and blocks 7 of insulating material, by means of screws 8, are electric contact fingers 9, each having a connection to a circuit wire 10. While not shown in the drawing, it may be stated that the wires 1() are included in the circuit of a suitable relay which controls the operation of a cut-out switch in an electric train line circuit, which it is desired to open when cars are to be separated.

rlhe casing 5 is provided with an inwardly extending annular flange 11 and said ange is clamped to the valve casing 1 by a cap nut 12, a tween the asket 13 being interposed be ange 11 and the casing 1 so as to provide a duid tight joint.

Extending downwardly through a central opening in thecap nut 12 is a stem 14 having secured to the lower end thereof, by means of a pin 15, a cylindrical block 16 of insulating material and carried by said block are connected contact members 17 adapted to be enga ed, in one position of the block 16, by the gers 9.

The stem 14 extends upwardly and is pro slot 19 through which a pin 20 extends, said pin being secured in the lower end of the valve 2.

'Ihe stem 18 is provided with a pin 21 which extends into slots provided in the stem 14, so that when the stem 18 is rotated, the stem 14 will also be rotated. The stem 14 is provided at an intermediate point with an annular flange 22 to which is secured a gasket 23 adapted to engage the flange 24 of the cap nut 12, so as to form a fluid tight joint.

interposed between the lower end of the plug valve 2 and the iiange 24 of the cap nut 12'is a coil spring 25 and interposed between the lower end of said valve and the iiange 22 is a lighter coil spring 26. The combined pressures exerted by the springs 25 and 26 is such as deemed necessary to hold the plug Valve 2 seated with the desired pressure. By employing two springs, a light sprmg pressure may be applied to the flange 22 of the stem 14, which,.while sufficient to maintain the gasket 23 seated against leak age, will not exert such a pressure as to cause excessive resistance to rotative movement and unnecessary wear of the gasket.

The open slot 19 in the stein 18 which receives the pin 20, permits the parts to be easily assembled and the elongated slots in the stem 14 in which the pin 21 plays, permits adjustment of the parts for any inequalities in spacing of the members.

When the plug valve 2 is turned to its closed position, as shown in the drawing, the contact iingers 9 engage the connected contacts 17 and a circuit through the wires 10 is closed. The relay in said circuit is then energized and the relay is operated to eect the opening of a circuit breaker in the train wire, the circuit of which it is desired to open, so as to cut ed current flow through the train wire and thus obviate the possi` bility of an operator coming in contact with a charged train wire.

When the plug valve 2 is turned to its open position, the member 16 is rotated, so that the contacts 17 are rotated out of connection with the contact fingers 9, and thereby the circuit through the wires 10 is broken.

In order to ensure that the switch port-ion will always be applied in the correct position relative to the angle cock, a downwardly extending pin 27 may be secured in the valve casing 1, which is adapted to register with a A cavity 28, provided vin the casing 5.

The lower end of the casing 5 1s closed by a cover plate 29, which when removed permits access to the interior of the casing 5.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is: f

1. The combination with a valve casing, a plug valve in said casing, and a cap nut secured to said casing and enclosing one end of said valve, of an electric switch having a rotatable member, a stem connected to said member and extending through an opening in said cap nut and having means for making a fluid tight joint at said opening, a stem connected to said valve, and a pin connecting said stems and adapted to permit relative axial movement of said stems.

V2. The combination with a valve casing, a plug valve in said casing, and a cap nut secured to said casing and enclosin one end of said valve, of an electric switc having a rotatable member, a stem extending throu h an opening in 'said cap nut and connecte to said member-and having an annular flan provided with a seat vfor making a fiuid tight joint at said o ening, a sprin interposed between said ange and sai valve, and a stem connected to said valve, said stems being o eratively connected and the stem having the flange being movable by said spring relatively to the valve.

3. The combination with a valve casing, a plug valve in said easing, and a cap nut secured to said casing and enclosing one end of said valve, of an electric switch having a' rotatable member, a stem extending through an opening in said ca nut and connected to said member and having an annular flange, a spring interposed between said flange and said va ve, a spring interposed between said cap nut and said valve, and means operatively connecting said valve with said stem.

4. The combination with a valve casing and a plug valve in said casing, of an electric switch having a rotatable member, a stem connected to said member, a stem having a slot, a pin secured to said valve and engaging in said slot, and a pin connecting said stems.

5. The combination with a valve casing and a plug valve in said casing, of an electric switch having a rotatable member, a stem c onnected to said member, a stem having a slot, a cpin secured to said valve and engaging insai slot, and a and extending into s ots formed in the other stem.

In testimony whereof I have hereunto set my hand.

. CLYDE C. FARMER.

in secured to one stem i 

